hey i just had a tubular k member, spec 3 clutch, and rebuilt tranny put on my 03 cobra. the car is running fine except for a vibration at cruising speed. it only happens when i left off the gas or initially put pressure back on the pedal. any ideas of what this might be coming from??

 

im guessin you lowered it too so its prolly just cause it is all around stiffer and less damponing with the tubular k member